Research On Based On Fluent Subgrade Cross-section Settings And Snow Protection Facilities

Wind blowing snow is common in the north of a natural disaster, will bury road, has a harmful effect on the traffic safety. Many domestic and foreign scholars have done in the past research has made no small progress. On the basis of previous studies using computer simulation to the existing subgrade cross-section design simulation, simulated, the rationality of the design of the snow protection facilities through roadbed embankment cross-section, roadbed subgrade cross-section, half cutting type subgrade cross-section, separated subgrade cross-section design simulation, find out effective governance and the prevention of local wind and snow disasters in Xinjiang section of roadbed optimized design parameters and snow facility design parameters, snowdrift after local security for reference.Fluent software is based on fluid mechanics and fluid dynamics of fluid flow on the air to describe, using a set of partial differential equations to describe. In this paper, K-ε turbulence model of the physical model, which is close to the actual wind farm.In this paper, fluent as a platform for anti-snow simulation facility design and construction and road section design research. The main contents are:Sections of roadbed different forms, different slope and height tested with different wind speed, determine a reasonable cross-section in the form of snow damage embankment area.1)Different heights snow fence sections are combined with four roadbed design on simulation of different wind snow flow field, were analyzed to determine a reasonable height snow fence through the relationship between the length L of snow after snow fence and snow fence height.2) For different heights of snow fence for flow field simulation, the influence of different wind speed wind and snow through the snow fence height and after snow snow fence length L, this paper compares and analyzes the relationship between determine the reasonable height of snow fence.3)Relations snow and snow fence length L and height H between the snow fence of different heights and different slope snow fence height of four embankment section combination of design, and the impact on the flow field simulation of snow at different distances from the road, through Comparative effects of changes in wind speed and determine a reasonable cross-section of roadbed combination of form and design of snow fence.Finally, this paper summarizes, prospects for future research work.